No uniform realisation is possible.

Incidence matrix according to Dynkin symbol

β3/2β3x3*a

both( .   . .    ) | 24 |  1  2  1  1 | 1 1 1  2
-------------------+----+-------------+---------
both( .   . x    ) |  2 | 12  *  *  * | 0 1 1  0
sefa( s3/2s .    ) |  2 |  * 24  *  * | 1 0 0  1
sefa( β   . x3*a ) |  2 |  *  * 12  * | 0 1 0  1
sefa( .   β3x    ) |  2 |  *  *  * 12 | 0 0 1  1
-------------------+----+-------------+---------
both( s3/2s .    ) ♦  3 |  0  3  0  0 | 8 * *  *
      β   . x3*a   ♦  6 |  3  0  3  0 | * 4 *  *
      .   β3x      ♦  6 |  3  0  0  3 | * * 4  *
sefa( β3/2β3x3*a ) |  4 |  0  2  1  1 | * * * 12

starting figure: x3/2x3x3*a